APS buildings are open to staff and invited visitors. The Library is under renovation until early 2022. Virtual programs are ongoing and some in person events are resuming. Read more about the APS's COVID response and operating procedures.

Museum Collections

Broadly, the American Philosophical Society Museum administers three-dimensional objects whereas the Library administers books, two-dimensional works on paper, photographs, and audio/visual materials. You can learn about the APS Museum collections on this page.